Hub motor magnetic steel recycling and disassembling device

Abstract

The application relates to the technical field of motor disassembly and recycling, and aims to provide a wheel hub motor magnetic steel recycling and disassembly device which comprises a lifting frame and a variable-diameter depressor, the variable-diameter depressor comprises a center disc, the center disc is fixedly connected with the lifting frame through two connecting vertical rods, a plurality of telescopic rods extending along the center disc in the radial direction are arranged on the circumferential surface of the center disc, the outer end of the telescopic rod is provided with a depressor plate used for contacting the magnetic steel on the wheel hub body, a variable-diameter driving mechanism is further arranged, the variable-diameter driving mechanism can drive the variable-diameter adjusting disc to move up and down, and the telescopic rod is driven to be elongated or shortened through the driving rod. The application can adapt to wheel hub bodies with various sizes and inner diameters, has high universality, is especially suitable for application in the magnetic steel recycling process of wheel hub motors with various mixed sizes of wheel hubs, and greatly improves the disassembly and recycling efficiency of the magnetic steel.

Description

TECHNICAL FIELD

[0001] The present application relates to motor disassembly and recycling technology, in particular to a kind of wheel hub motor magnetic steel recycling disassembly device. BACKGROUND

[0002] Wheel hub motor is the driving unit that power device, transmission system are integrated in wheel hub, its core structure, as shown in Figure 1 It contains wheel hub body (rotor), permanent magnet and winding, the inner wall surface of wheel hub body installs permanent magnet (generally neodymium iron boron magnetic steel), winding is installed in wheel hub, and is closed by hub cover.Recently, with the rapid development and popularization of new energy vehicles, more and more wheel hub motors face scrap, and wheel hub motor contains a large amount of high-value metal, rare earth and other materials (such as: aluminum alloy wheel hub, copper wire, silicon steel sheet, magnetic steel), recycling of these high-value materials is more and more widely concerned.

[0003] Wheel hub motor is removed before disassembly;In the process, hub cover bolt needs to be loosened, then winding and wheel hub body are separated by knocking, pressing and other ways, after hub cover and winding are removed, magnetic steel installed on the inner wall surface of wheel hub body is removed by knocking, pressing and other ways.But due to the complexity of the whole operation process, and the size difference of wheel hub motors of various manufacturers, at present, wheel hub motor is basically disassembled and recycled by manual disassembly, which greatly increases labor intensity and labor cost, and recycling efficiency is low.Although some are assisted by general press and other equipment, the overall disassembly efficiency is still greatly limited.

[0004] In the process of disassembling wheel hub motor, winding, wheel hub body and hub cover are separated, and magnetic steel is separated from wheel hub body, which is the core process in the whole link.As various types of recycled and disassembled wheel hub motors do not have uniform size, which makes it difficult for existing general equipment to truly play a high-efficiency role. SUMMARY

[0005] The present application aims to provide a wheel hub motor magnetic steel recycling disassembly device that can adapt to different wheel hub sizes.

[0006] To achieve the above-mentioned application purpose, the technical scheme adopted by the present application is: a wheel hub motor magnetic steel recycling disassembly device, comprising a lifting frame;The bottom of the lifting frame is provided with a variable-diameter depressor.

[0007] The variable-diameter depressor comprises a center disc, the center disc is fixedly connected with the lifting frame through two connecting vertical rods;A plurality of telescopic rods extending radially along the center disc are arranged on the peripheral surface of the center disc, the outer end of the telescopic rod is provided with a depressor plate for contacting the magnetic steel on the wheel hub body;The depressor plates around the center disc jointly form an annular depressor ring.

[0008] The middle section of the connecting vertical rod is further provided with a variable-diameter adjusting disc, which is in sliding fit with the connecting vertical rod; a plurality of driving rods are further provided on the peripheral surface of the variable-diameter adjusting disc, and the two ends of each driving rod are hingedly connected with the variable-diameter adjusting disc and the outer end of the telescopic rod, respectively.

[0009] The variable-diameter driving mechanism is capable of driving the variable-diameter adjusting disc to move up and down, and driving the telescopic rod to be elongated or shortened through the driving rods.

[0010] Preferably, the variable-diameter driving mechanism comprises a central screw, the upper end of which is connected with a variable-diameter driving motor fixedly arranged on the lifting frame, and the lower end of which is in rotational fit with the central disc; the variable-diameter adjusting disc is sleeved on the central screw and is in screw fit with the central screw.

[0011] Preferably, the telescopic rod is in a sleeve type structure provided with a plurality of telescopic sections, and the last telescopic section of the telescopic rod is connected with the pressing plate through a square rod; a hinging pin is arranged on the side wall of the square rod, the lower end of the driving rod is connected with the hinging pin, and the upper end of the driving rod is connected with a hinging seat on the peripheral surface of the variable-diameter adjusting disc.

[0012] Preferably, the pressing plate is in an isosceles trapezoid with an arc-shaped bottom side, and adjacent two pressing plates are staggered in the height direction.

[0013] Preferably, the edge of the pressing plate close to the telescopic rod is provided with a vertical plate, and the pressing plate and the vertical plate form an inverted L-shaped structure; the pressing plate is connected with the square rod through the vertical plate; the outward side of the vertical plate is provided with a radial pressing assembly for extruding the inner surface of the magnetic steel.

[0014] Preferably, the radial pressing assembly comprises a pressing plate, one side of the pressing plate is provided with a pressing piston rod, the pressing piston rod is arranged in the last telescopic section of the square rod and the telescopic rod, and is in sliding fit with the telescopic rod along the length direction of the telescopic rod; the variable-diameter adjusting disc is a hollow disc, and the inner cavity of the variable-diameter adjusting disc is communicated with the inner cavity of the telescopic rod; the variable-diameter adjusting disc is further provided with a gas filling port for filling and discharging high-pressure gas in the variable-diameter adjusting disc.

[0015] Preferably, the lower side of the central disc is provided with a lower pulling disc capable of moving up and down relative to the central disc, a plurality of lower pulling wheels are arranged on the peripheral surface of the lower pulling disc and correspond to the telescopic rod, a lower pulling rope is wound around the lower pulling wheels, one end of the lower pulling rope is fixed on the central disc, and the other end of the lower pulling rope is fixed on the square rod of the telescopic rod.

[0016] Preferably, one of the connecting vertical rods is a hollow rod, a pushing disc rod is arranged in the connecting vertical rod, the upper end of the pushing disc rod is connected with a pushing disc cylinder fixedly arranged on the lifting frame, and the lower end of the pushing disc rod is connected with the lower pulling disc.

[0017] Preferably, a vertical guide column is arranged at the center of the bottom of the center disc, and the pull-down disc is sleeved outside the guide column and is in sliding fit with the guide column.

[0018] Preferably, a rotating platform is arranged on the lifting frame, and the variable-diameter down presser is arranged on the rotating platform.

[0019] The application has the advantages that it can adapt to wheel hub bodies of various sizes and inner diameters, has strong versatility, is especially suitable for use in the magnetic steel recycling process of wheel hub motors with mixed sizes, and greatly improves the efficiency of magnetic steel disassembly and recycling. Specifically, in the use process of the variable-diameter down presser, the variable-diameter down presser adopts an "umbrella-shaped" variable-diameter structure, the variable-diameter adjusting disc moves up and down to drive the driving rod to swing, the lower end of the driving rod is used to stretch the telescopic rod, the telescopic rod is stretched to different lengths through the height adjustment of the variable-diameter adjusting disc, so as to adapt to wheel hub bodies of different inner diameters, and the lifting frame drives the variable-diameter down presser to press down, so that the magnetic steel attached to the inner side wall of the wheel hub body is pushed downward by the pressing plate, and the separation of the wheel hub body and the magnetic steel is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the simplified structure of the existing wheel hub motor;

[0021] Figure 2 It is a schematic diagram of the structure of the disassembly all-in-one machine;

[0022] Figure 3 It is a top view schematic diagram of the workbench of the disassembly all-in-one machine;

[0023] Figure 4 It is a top view schematic diagram of the clamping device;

[0024] Figure 5 It is Figure 4 It is an enlarged view of 0-1 part;

[0025] Figure 6 It is a schematic diagram of the structure of the driving gear ring;

[0026] Figure 7 It is a schematic diagram of the structure of the variable-diameter down presser of the magnetic steel disassembly device;

[0027] Figure 8 It is a top view schematic diagram of the center disc;

[0028] Figure 9 It is a schematic diagram of the internal structure of the telescopic rod;

[0029] Figure 10 It is Figure 9 It is a schematic diagram of one use state of the structure shown in the figure.

[0030] The figure mark: wheel hub motor: 0;Wheel hub body 0-1;Center shaft 0-2;Winding 0-3;Hub cover 0-4;Magnetic steel 0-5;Workbench: 1;First disassembly station: 2;Second disassembly station: 3;Feeding station: 4;Clamping device: 5;Stator disassembly device: 6;Magnetic steel disassembly device: 7;Feeding support plate: 8;Fixed ring: 9;Connecting plate: 10;Outer frame: 11;Clamping rack: 12;Clamping head: 13;Driving gear: 14;Clamping drive gear: 15;Bearing plate: 16;Clamping drive motor: 17;Triangular plate: 18;Planetary tooth column: 19;Guide groove: 20;Pressing strip: 21;Clamping edge: 22;Filling rubber body: 23;Square column: 24;Horizontal movement block: 25;Turnover shaft: 26;Turnover drive wheel: 27;Horizontal guide rail: 29;Horizontal movement lead screw: 30;Horizontal movement guide rod: 31;First discharge conveyor belt: 32;Second discharge conveyor belt: 33;Feeding conveyor belt: 34;Supporting column: 35;Top frame: 36;Lifting frame: 37;Pressing cylinder: 38;Pressing shaft rod: 39;Variable-diameter presser: 40;Center disc: 41;Connecting vertical rod: 42;Telescopic rod: 43;Pressing plate: 44;Vertical plate: 441;Variable-diameter adjusting disc: 45;Driving rod: 46;Center screw: 47;Variable-diameter drive motor: 48;Telescopic section: 49;Square rod: 50;Hinge pin: 51;Hinge seat: 52;Pressing piston rod: 53;Lower pull disc: 54;Lower pull wheel: 55;Lower pull rope: 56;Push disc rod: 57;Push disc cylinder: 58;Guide column: 59;Rotary platform: 60. DETAILED DESCRIPTION

[0031] As Figure 1 shown, it is a simplified structure diagram of the most common wheel hub motor at present, which includes winding 0-3 located in the center, wheel hub body 0-1 located outside the winding 0-3, magnetic steel 0-5 arranged on the inner side wall of the wheel hub body 0-1, and the two ends of the wheel hub body 0-1 are packaged through hub cover 0-4, and the center shaft 0-2 on the winding 0-3 is supported through the bearing.

[0032] In order to realize the rapid disassembly of this kind of wheel hub motor and realize the effective recycling of various resources in the wheel hub motor, the application discloses a wheel hub motor disassembly all-in-one machine, which is used for rapidly and uniformly disassembling the main components of the wheel hub motor, and disassembles the assembled wheel hub motor 0 into winding 0-3 (including center shaft 0-2), wheel hub body 0-1, hub cover 0-4 and magnetic steel 0-5, so as to meet the needs of subsequent copper wire stripping, aluminum alloy recycling, magnetic steel remagnetization and other resource recycling fine processing.

[0033] The overall structure of the disassembly all-in-one machine is as Figure 2As shown, the workbench 1 is arranged in a straight line. A first disassembly station 2 and a second disassembly station 3 are respectively located at both ends of the workbench 1, and a loading station 4 is located in the middle of the workbench 1. A clamping device 5 is installed on the workbench 1, which can clamp the hub body 0-1 (with the tire removed) of the hub motor 0 from the outside to form a clamping effect on the hub motor 0. This clamping device 5 can move along the length of the workbench 1 under the drive of a horizontal drive mechanism, such as... Figure 2 As shown, it moves in the left and right direction and can be flipped under the drive of the flipping drive mechanism to form a flipped surface of the hub body 0-1 clamped on it.

[0034] The clamping device 5 adopts a ring-shaped design with a central hole for inserting the hub motor 0. At the loading station 4, a horizontal loading support plate 8 is also provided at the loading station 4. The loading support plate 8 is located below the clamping device 5. The size of the loading support plate 8 can be flexibly designed to effectively support the hub motor 0 in the non-clamping state, and its placement does not affect the movement of other moving parts of the invention.

[0035] This integrated dismantling machine features dual dismantling stations. At the first dismantling station (2), it connects directly to sorting equipment for separating and gripping the wheel hub body, hub cover, and windings. This sorting equipment then connects to subsequent copper wire stripping, hub cover crushing, and wheel hub crushing equipment. At the second dismantling station (3), it typically connects directly to subsequent magnet screening and sorting equipment, serving as a downstream conveyor node for the magnets. The equipment typically uses a conveyor belt for connection, such as... Figure 2 and 3 As shown, it also includes a first discharge conveyor belt 32, a second discharge conveyor belt 33, and a feed conveyor belt 34, with the tail end of the feed conveyor belt 34 positioned opposite one side of the loading station 4. The head ends of the first discharge conveyor belt 32 and the second discharge conveyor belt 33 are located below the workbench 1 of the first dismantling station 2 and the second dismantling station 3, respectively.

[0036] This invention provides a stator disassembly device 6 at the first disassembly station 2 and a magnet disassembly device 7 at the second disassembly station 3; both the stator disassembly device 6 and the magnet disassembly device 7 achieve disassembly by pressing down, specifically:

[0037] The stator disassembly device 6 separates the winding 0-3 (including the central shaft 0-2) and one side hub cover 0-4 from the hub body 0-1 by pressing down on the central shaft 0-2 of the hub motor 0 on the clamp 5. For example... Figure 2As shown, one possible approach is as follows: the stator disassembly device 6 includes four support columns 35 and a top frame 36 mounted on top of the support columns 35. A lifting frame 37 is fitted around the middle section of each support column 35, and the lifting frame 37 is connected to the output end of a pressing cylinder 38 fixedly mounted on the top frame 36. A vertical pressure rod 39 is provided at the bottom of the lifting frame 37. Of course, other pressing structures that achieve the same function are also feasible.

[0038] The magnet disassembly device 7 separates the magnet 0-5 from the hub body 0-1 by pressing down on the magnet 0-5 on the inner wall of the hub body 0-1 on the clamp 5. Its overall structure can be similar to that of the stator disassembly device 6, but since the stator disassembly device presses down on the central shaft 0-2, its pressing part can be roughly rod-shaped; while the magnet disassembly device 7 presses down on the magnet 0-5 on the inner wall of the hub body 0-1, so it has a disc-shaped or ring-shaped structure.

[0039] like Figure 4 As shown, the clamping device 5 includes an outer frame 11, with a fixing ring 9 at its center. The fixing ring 9 is fixed to the outer frame 11 via a connecting plate 10, forming a stable fixation. It achieves clamping of the wheel hub body 0-1 through the following structure:

[0040] like Figure 4 As shown, the fixed ring 9 has multiple clamping racks 12 that extend radially along the fixed ring 9 and are capable of sliding radially along the fixed ring 9, with clamping heads 13 at their inner ends. The bottom of the fixed ring 9 also has a drive gear ring 14 that forms a rotational fit with the fixed ring 9. Typically, the top surface of the drive gear ring 14 has a dovetail ring ridge in the middle, which engages with the dovetail ring groove of the fixed ring 9 to form a more stable sliding fit. Figure 6 As shown, the drive gear ring 14 adopts a double gear ring form, that is, it has teeth on both the inner and outer sides, and the outer teeth mesh with the clamping drive gear 15 set on a connecting plate 10. The clamping drive gear 15 is connected to the clamping drive motor 17 set on the bearing plate 16 at one corner of the outer frame 11, and the clamping drive motor 17 drives the drive gear ring 14 to move. Figure 5 As shown, the teeth on the inner side of the drive gear ring 14 mesh with the planetary gear spur 19, and the planetary gear spur 19 meshes with the clamping rack 14; in other words, a planetary gear spur 19 is installed on the fixed ring 9 on one side of each clamping rack 12 through a triangular plate 18. The lower section of the planetary gear spur 19 meshes with the inner teeth of the drive gear ring 14, and the upper section meshes with the clamping rack 12.

[0041] To further improve the stability of the clamping rack 14 movement, such as Figure 5As shown in the figure, the fixed ring 9 is provided with a guide groove 20 at the position opposite to the clamping rack 12, and the clamping rack 12 is located in the guide groove 20, and one side of the clamping rack 12 is pressed in the guide groove 20 by a pressing strip 21.

[0042] The clamping head 13 can be a simple arc-shaped block, but since the outer circumferential surface of the hub body 0-1 has a certain arc, and the arc of the hub body 0-1 of different sizes differs greatly, therefore, it is better to provide, as shown in the figure, Figure 5 As shown in the figure, the clamping head 13 is provided with two vertical and inward protruding clamping edges 22 on both sides of the end of the clamping device 5 towards the center, and the clamping edges 22 form an arc-shaped groove therebetween, and a filling rubber body 23 is arranged in the groove. By taking the clamping edges 22 as the clamping points on both sides, the outer circumferential surface of the hub body 0-1 is first clamped and positioned by the clamping edges 22, and the filling rubber body 23 arranged between the clamping edges 22 can be compressed according to the arc size of the hub body 0-1, and better full contact with the hub body 0-1 is formed.

[0043] A better and compact implementation of the clamping device 5 in terms of overturning is as shown in the figure, Figure 3 and 4 As shown in the figure, the clamping device 5 is provided with a hollow square column 24 on both front and rear sides, and a overturning shaft 26 on both front and rear sides of the clamping device 5 is arranged in the square column 24 and rotates with the square column 24. The lower end of the square column 24 is connected with a horizontal moving block 25. By rotating the overturning shaft 26, the outer frame 11 and other components of the clamping device 5 inside can be rotated to form overturning. As for how to position after overturning, it can be designed according to the prior art, for example, by arranging an electromagnetic clamp on the motor shaft, which will not be described in detail in the present application. In order to facilitate the layout of the overturning drive motor, the overturning drive mechanism usually includes an overturning drive wheel 27 arranged on the overturning shaft 26 in the square column 24 on one side, and the overturning drive wheel 27 is drivingly connected with an overturning drive motor fixedly arranged at the bottom of the square column 24 through a synchronous belt, so as to avoid that the overall center of gravity of the square column 24 is too high, affecting horizontal sliding.

[0044] As for how to stably drive the clamping device 5 in the length direction of the workbench 1, as shown in the figure, Figure 3As shown in the figure, the horizontal driving mechanism can be structured as follows: the horizontal driving mechanism includes a horizontal guide rail 29 extending along the length direction of the workbench 1 arranged below the horizontal moving block 25, and a horizontal moving screw 30 and a horizontal moving guide rod 31 arranged on one side of the horizontal guide rail 29 and parallel to the horizontal guide rail 29. The horizontal moving block 25 is clamped on the horizontal guide rail 29 and forms a sliding fit with the horizontal guide rail 29. The horizontal moving screw 30 and the horizontal moving guide rod 31 are respectively arranged in the corresponding horizontal moving block 25 of the two square columns 24 and form a threaded fit and a sliding fit with the horizontal moving block 25. The horizontal moving screw 30 serves as a driving component, and its rotation drives the horizontal moving block 25 to move along the horizontal guide rail 29 and the horizontal moving guide rod 31, thereby realizing stable movement.

[0045] In the use process of the disassembly all-in-one machine, the overall working process is as follows: after the hub cover screws and tires of the hub motor 0 are uniformly disassembled, the hub motor 0 is placed on the upper support plate 8 of the upper feeding station 4 of the workbench 1, at this time the clamping device 5 is located at the upper feeding station 4; the hub body 0-1 of the hub motor 0 can be directly clamped by the clamping device 5, and then the clamping device 5 is driven by the horizontal driving mechanism to move along the workbench 1 to the first disassembly station 2, the stator disassembly device 6 of the first disassembly station 2 is pressed down to press down the central shaft 0-2, the winding 0-3, and one side of the hub cover 0-4 of the hub motor 0, so that they are separated from the hub body 0-1, and the stator disassembly device 6 is reset after disassembly; then, the clamping device 5 is turned over under the drive of the overturning driving mechanism, so that the hub cover 0-4 on the other side of the hub motor 0 is located below; the stator disassembly device 6 is pressed down again and then reset, and the hub cover 0-4 on the other side is disassembled. The clamping device 5 moves with the hub body 0-1 to the second disassembly station 3 again, at this time only the hub body 0-1 and the magnetic steel 0-5 thereon are left, the magnetic steel disassembly device 7 is pressed down and then reset, and the magnetic steel 0-5 on the hub body 0-1 is disassembled; after the magnetic steel 0-5 is disassembled, the remaining hub body 0-1 can be directly placed down at the second disassembly station 3, but it can also be returned to the first disassembly station 2 for placement; in this way, the hub motor 0 is directly disassembled into the hub body 0-1, the winding 0-3, the hub cover 0-4, and the magnetic steel 0-5, so as to be subjected to subsequent fine classification processing; compared with the traditional manual processing, the processing efficiency is higher, and the automation level is greatly improved; and the disassembly of each main component can be completed by the all-in-one machine, and the integration degree is high.

[0046] In addition, the clamp 5 of the present application can adapt to various different outer diameters of the hub motor 0, but during the disassembly of the magnetic steel 0-5, the magnetic steel disassembly device 7 should also be able to adapt to various different inner diameters of the hub body 0-1, so as to meet the comprehensive recycling needs of large quantities of different sizes of hub motors 0 and improve the universality. Therefore, the present application also discloses a magnetic steel disassembly and recycling device, and the lifting part of the device can refer to the stator disassembly device 6. It can also be flexibly adapted, that is, the lifting frame 37 and its lifting driving form can be flexibly designed according to the layout needs, and other lifting forms and driving forms can be used, but the most special part is that the bottom of the lifting frame 37 is provided with a variable-diameter depressor 40. The variable-diameter depressor 40 is a depressor whose outer diameter can change radially to adapt to different inner diameters of the hub body 0-1.

[0047] As Figure 7 The variable-diameter depressor 40 includes a center disc 41 fixedly connected with the lifting frame 37 through two connecting vertical rods 42. A plurality of telescopic rods 43 (such as 24, 36, etc.) extending radially along the center disc 41 are arranged on the peripheral surface of the center disc 41, Figure 7 In order to avoid illustration interference, only the left and right and front telescopic rods 43 are shown. The outer end of the telescopic rod 43 is provided with a depressor plate 44 for contacting the magnetic steel 0-5 on the hub body 0-1, and the depressor plates 44 surrounding the center disc 41 jointly form an annular depressor ring, that is, the depressor ring of the variable-diameter depressor 40 is jointly surrounded by all the depressor plates 44. By changing the length of the telescopic rod 43, the protruding position of the depressor plate 44 relative to the center disc 41 can be adjusted, and the outer diameter of the formed depressor ring can be adjusted. Generally, Figure 8 As shown in the figure, the depressor plate 44 is isosceles trapezoidal with an arc bottom edge, and adjacent two depressor plates 44 are staggered in the height direction. When the depressor plate 44 is retracted inward, the edges of adjacent depressor plates 44 can overlap and will not cause interference, and when it is extended outward, the originally overlapped part can be unfolded to ensure the basic coverage of the entire circumference. Although it has a certain change in height, the whole does not affect the pushing of the magnetic steel 0-5.

[0048] The present application realizes variable-diameter adjustment through the telescopic extension of the telescopic rod 43. In order to have a larger variable-diameter range, the present application adopts an axial active action to drive the telescopic rod 43 to extend and retract in the radial direction. As Figure 7As shown, a variable diameter adjusting disk 45 is also provided outside the middle section of the connecting vertical rod 42, and the variable diameter adjusting disk 45 and the connecting vertical rod 42 form a sliding fit. Several drive rods 46 are also provided on the circumference of the variable diameter adjusting disk 45, and the two ends of the drive rods 46 are respectively hinged to the outer ends of the variable diameter adjusting disk 45 and the telescopic rod 43. A variable diameter driving mechanism is also included, which can drive the variable diameter adjusting disk 45 to move up and down, and drive the telescopic rod 43 to extend or shorten via the drive rods 46.

[0049] During use, the variable diameter presser 40 adopts an "umbrella-shaped" variable diameter structure. The variable diameter adjustment disc 45 moves up and down, driving the drive rod 46 to swing. The lower end of the drive rod 46 opens the telescopic rod 43. By adjusting the height of the variable diameter adjustment disc 45, the telescopic rod 43 can be extended to different lengths to adapt to wheel hub bodies 0-1 with different inner diameters. The lifting frame 37 drives the variable diameter presser 40 to press down, and the lower pressure plate 44 pushes the magnet 0-5 attached to the inner wall of the wheel hub body 0-1 downwards, realizing the separation of the wheel hub body 0-1 and the magnet 0-5.

[0050] Regarding the drive mechanism of the variable diameter adjusting disc 45, such as Figure 7 As shown, the variable diameter drive mechanism may include a central screw 47. The upper end of the central screw 47 is connected to a variable diameter drive motor 48 fixedly mounted on the lifting frame 37, and the lower end is rotatably engaged with a central disc 41. The variable diameter adjustment disc 45 is sleeved on the central screw 47 and is threadedly engaged with it. The variable diameter drive motor 48 drives the central screw 47 to rotate, thereby driving the variable diameter adjustment disc 45 to rise and fall along the connecting vertical rod 42, resulting in better movement stability. Of course, it is also feasible to use a hydraulic cylinder, pneumatic cylinder, or other means to directly drive the variable diameter adjustment disc 45.

[0051] like Figure 9 As shown, the telescopic rod 43 of the variable diameter presser 40 is a sleeve-type structure with multiple telescopic sections 49. The final telescopic section 49 of the telescopic rod 43 is connected to the presser plate 44 via a square rod 50. A hinge pin 51 is provided on the side wall of the square rod 50. The lower end of the drive rod 46 is connected to the hinge pin 51, and the upper end of the drive rod 46 is connected to the hinge seat 52 on the circumference of the variable diameter adjusting disc 45. Figure 9 The diagram only shows three telescopic sections 49. In practical applications, more telescopic sections 49 can be selected, or only a two-section telescopic structure can be used. However, the multi-section structure generally has a wider range of variable diameters.

[0052] In the process of disassembling the magnetic steel 0-5, the lower pressing plate 44 mainly applies a pushing force to the end face of the magnetic steel 0-5, so that the magnetic steel 0-5 overcomes the adsorption force and the adhesive force and is separated from the hub body 0-1. In this case, the magnetic steel 0-5 lacks internal support, and in the test, it is found that the magnetic steel 0-5 with a relatively thin thickness is prone to breakage. Therefore, the better way of the present application is:

[0053] As shown in Figure 9 and 10 , the lower pressing plate 44 is provided with a vertical plate 441 on the edge close to the telescopic rod 43, and forms an inverted L-shaped structure with the vertical plate 441. The lower pressing plate 44 is connected with the square rod 50 through the vertical plate 441. The outer side of the vertical plate 441 is provided with a radial pressing assembly for extruding the inner surface of the magnetic steel 0-5. The radial pressing assembly also applies a radial pushing force to the magnetic steel 0-5, so that the risk of physical damage such as breakage is greatly reduced in the process of separating the magnetic steel 0-5 from the hub body 0-1.

[0054] In order to simplify the overall radial pressing mode, as shown in the figure, the radial pressing assembly includes a pressing plate, one side of the pressing plate is provided with a pressing piston rod 53 (including a rod body and an abutting plate), the pressing piston rod 53 is arranged in the square rod 50 and the last telescopic segment 49 of the telescopic rod 43, and the telescopic rod 43 forms a sliding fit along the length direction of the telescopic rod 43. The variable-diameter adjusting disc 45 is a hollow disc, and the inner cavity of the variable-diameter adjusting disc 45 is in communication with the inner cavity of the telescopic rod 43. The variable-diameter adjusting disc 45 is also provided with a gas inlet for filling and discharging high-pressure gas in the variable-diameter adjusting disc 45. In use, the pressure inside the variable-diameter adjusting disc 45 can be changed through the gas inlet, so as to push the pressing piston rod 53 to apply a certain supporting internal pressure to the magnetic steel 0-5, thereby reducing the risk of crushing and breaking of the magnetic steel 0-5 in the process of separating the magnetic steel 0-5.

[0055] In addition, the present application adopts a plurality of telescopic rods 43 as the supporting members of the lower pressing plate 44, and the telescopic rod 43 is limited by the requirement that it is not suitable to be too large in size, and is usually small (as shown in Figure 8 , only a simple structure is shown), and the magnetic steel 0-5 has a strong adsorption strength, and a large upward reaction force is generated when it is pressed. On the one hand, the upward force can be shared by the driving rod 46, but as the size of the hub increases, the inclination of the driving rod 46 will gradually change, and at this time, more reaction force will be transferred to the shearing of the driving rod 46, which will increase the risk of deformation of the driving rod 46. Therefore, the better way of the present application is:

[0056] As shown in Figure 7As shown in the figure, the lower part of the center disc 41 is provided with a lower pull disc 54 capable of moving up and down relative to the center disc 41, and a plurality of lower pull wheels 55 are arranged on the circumferential surface of the lower pull disc 54 corresponding to the telescopic rods 43, and a lower pull rope 56 is arranged around the lower pull wheels 55, one end of the lower pull rope 56 is fixed on the center disc 41, and the other end is fixed on the square rod 50 of the telescopic rod 43. Before the length of the telescopic rod 43 is adjusted, the lower pull disc 54 is in the highest position, and after the telescopic rod 43 is adjusted to the right position according to the size of the hub, the lower pull disc 54 is controlled to move downward to pull the lower pull rope 56 tightly, so as to realize the downward pulling of the telescopic rod 43 to offset the reaction force of the upward top.

[0057] As for how to drive the lower pull disc 54, there are many specific structural forms, for example: Figure 7 As shown in the figure, one of the connecting vertical rods 42 is a hollow rod, a push disc rod 57 is arranged in the connecting vertical rod 42, the upper end of the push disc rod 57 is connected with a push disc cylinder 58 fixedly arranged on the lifting frame 37, and the lower end is connected with the lower pull disc 54. On this basis, in order to further ensure the stability of the movement of the lower pull disc 54, a vertical guide column 59 is arranged at the center of the bottom of the center disc 41, the lower pull disc 54 is sleeved outside the guide column 59 and forms a sliding fit with the guide column 59.

[0058] In addition, in order to make the variable-diameter down presser 40 of the present application have certain adjusting ability in the circumferential direction to adapt to more use requirements, a rotating platform 60 is arranged on the lifting frame 37, and the variable-diameter down presser 40 is arranged on the rotating platform 60.

Claims

1. A wheel hub motor magnetic steel recycling disassembling device, characterized in that: Including the lifting frame (37), the bottom of the lifting frame (37) is provided with a variable diameter depressor (40); The variable diameter depressor (40) includes a center disc (41) fixedly connected with the lifting frame (37) by two connecting vertical rods (42); a plurality of telescopic rods (43) extending radially along the center disc (41) are arranged on the peripheral surface of the center disc (41), and the outer end of the telescopic rod (43) is provided with a depressor plate (44) used for contacting the magnetic steel (0-5) on the hub body (0-1), and the depressor plates (44) surrounding the center disc (41) jointly form an annular depressor ring; The middle section of the connecting vertical rod (42) is further provided with a variable diameter adjusting disc (45), and the variable diameter adjusting disc (45) and the connecting vertical rod (42) form a sliding fit; a plurality of drive rods (46) are further arranged on the peripheral surface of the variable diameter adjusting disc (45), and the two ends of the drive rod (46) are respectively hinged to the variable diameter adjusting disc (45) and the outer end of the telescopic rod (43); Further comprising a variable diameter driving mechanism, the variable diameter driving mechanism can drive the variable diameter adjusting disc (45) to move up and down, and drive the telescopic rod (43) to elongate or shorten through the drive rod (46); The variable diameter driving mechanism includes a center screw (47), the upper end of the center screw (47) is connected with a variable diameter driving motor (48) fixedly arranged on the lifting frame (37), and the lower end is in rotational fit with the center disc (41); the variable diameter adjusting disc (45) is sleeved outside the center screw (47) and is in screw fit with the center screw (47); The telescopic rod (43) is a sleeve type structure provided with a plurality of telescopic sections (49), and the last telescopic section (49) of the telescopic rod (43) is connected with the depressor plate (44) through a square rod (50); a hinge pin (51) is arranged on the side wall of the square rod (50), the lower end of the drive rod (46) is connected with the hinge pin (51), and the upper end of the drive rod (46) is connected with a hinge seat (52) on the peripheral surface of the variable diameter adjusting disc (45); The depressor plate (44) is an isosceles trapezoid with an arc edge as the bottom edge, and adjacent two depressor plates (44) are staggered in the height direction; An upright plate (441) is arranged on the edge of the depressor plate (44) close to the telescopic rod (43), and forms an inverted L-shaped structure with the upright plate (441); the depressor plate (44) is connected with the square rod (50) through the upright plate (441); the outward side of the upright plate (441) is provided with a radial pressure assembly used for extruding the inner surface of the magnetic steel (0-5); The radial pressure assembly includes a pressure plate, one side of the pressure plate is provided with a pressure piston rod (53), the pressure piston rod (53) is arranged in the square rod (50) and the last telescopic section (49) of the telescopic rod (43), and is in sliding fit with the telescopic rod (43) along the length direction of the telescopic rod (43); the variable diameter adjusting disc (45) is a hollow disc, and the inner cavity of the variable diameter adjusting disc (45) is communicated with the inner cavity of the telescopic rod (43); the variable diameter adjusting disc (45) is further provided with a gas filling port used for filling and discharging high-pressure gas in the variable diameter adjusting disc (45).

2. The hub motor magnetic steel recycling disassembling device according to claim 1, characterized in that: A lower pull disc (54) capable of moving up and down relative to the center disc (41) is arranged below the center disc (41), a plurality of lower pull wheels (55) are arranged on the circumferential surface of the lower pull disc (54) corresponding to the telescopic rods (43), a lower pull rope (56) is wound around the lower pull wheels (55), one end of the lower pull rope (56) is fixed on the center disc (41), and the other end is fixed on the square rod (50) of the telescopic rod (43).

3. The wheel hub motor magnet steel recycling disassembling device according to claim 2, characterized in that: One of the connecting vertical rods (42) is a hollow rod, a push disc rod (57) is arranged in the connecting vertical rod (42), the upper end of the push disc rod (57) is connected with a push disc cylinder (58) fixedly arranged on the lifting frame (37), and the lower end is connected with the lower pull disc (54).

4. The wheel hub motor magnet steel recycling disassembling device according to claim 3, characterized in that: A vertical guide column (59) is arranged at the center of the bottom of the center disc (41), the lower pull disc (54) is sleeved outside the guide column (59) and is in sliding fit with the guide column (59).

5. The wheel hub motor magnet steel recycling disassembling device according to claim 4, characterized in that: A rotating platform (60) is arranged on the lifting frame (37), and the variable-diameter depressor (40) is arranged on the rotating platform (60).

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